| 摘要 |
<p>The invention relates to a hydraulic control valve, comprising a two position valve body adapted to be shifted - by means of a rotary movement of an actuating shaft - from one operative position to the other. According to the invention the shaft of the valve body carries a drive wheel segment extending through an arc that corresponds to the shift angle of the valve body, said wheel segment being in drive connection with the actuating shaft, spring means being provided to bias - at least in the final stage of a rotary shift movement in either direction - said wheel segment in de direction opposite to the shift direction. This enables the valve body to be shifted from one working position into the other in a reliable manner, by simply reversing the direction of rotation of an available rotating drive shaft. <IMAGE></p> |
